Abbreviations & Definitions
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Abbreviation
Definition
1 OPT 1  One year, option another one year (used on Time Charter period) 
1/2 SB  One or two safe berth(s) 
1/2 SP  One or two safe port(s) 
2H  Second Half 
4 X W or WWWW  WCCON / WIFPON / WIPON / WIBON 
Benzene Ring  6 carbon atoms in the form of a ring structure with a hydrogen atom attached to each carbon and is the basic building block of all aromatic chemicals 
Class 2 [Deck]  1st Mate, Chief Mate or Chief Officer: Entitles the holder to act as Chief Mate on a ship of any size with unlimited trading or may entitle the holder to act as Master on a ship but with restrictions on size or trading area. 
Class 2 [Engineer]  2nd Engineer: Entitles the holder to sail as Second Engineer on a ship of any power but may also entitle the holder to act as Chief Engineer on a ship with a restriction on power. 
Class 3 [Deck]  2nd Mate: Entitles the holder to act as officer in charge of a navigational watch on a ship of any size with unlimited trading but may also entitle the holder to act as Chief Mate, or possibly Master, on a ship but with restrictions on size or trading area. 
Class 3 [Engineer]  3rd Engineer: Entitles the holder to act as officer in charge of an engineering watch on a ship of any power but may also entitle the holder to act as Second Engineer, or possibly Chief Engineer, on a ship with a restriction on power. 
Class 4 [Deck]  3rd Mate: Entitles the holder to act as officer in charge of a navigational watch on any ship. 
Class 4 [Engineer]  4th Engineer: Entitles the holder to act as officer in charge of an engineering watch on a ship of any power. 
Cubic Foot  1,728 cubic inches. A volume contained in a space measuring one foot high, one foot wide and one foot long. 
Ethyl hexanol  2-Ethyl hexanol (2EH) is an higher aliphatic alcohol.. 2EH is also used as a solvent and has a particular niche use in the formation of lacquers and coatings when slow evaporation is desired 
Kilogram  1,000 grams or 2.2046 pounds. 
Liter  1.06 liquid U.S. quarts or 33.9 fluid ounces. 
Long Ton  2,240 pounds 
MBM  1,000 board feet. One MBM equals 2,265 C.M. 
Measurement Ton  40 cubic feet. 
Meter  39.37 inches (approximately). 
Metric Ton  2,204.6 pounds or 1,000 kilograms. 
Suez Net Tonnage Volume  100 cubic feet = 1 ton of cargo carrying capacity assigned to a vessel by the Suez Canal Authority, issued on vessel''s first transit of canal. The tonnage is used to calculate fees and tolls.